Rubber-set riffle



-l. HORN.

RUBBER SET RIFFLE.

APPucATmN FILEDJUNE24,1919.

Patented Aug. 3L 1920.

Fi. Il

Z a 3, N www@ m y 5 f 7 .1% l 3 n i/, F JAM. 4Q.

` of the United States, residing at the county of Pinal and State of Arizona,-

UNITED: STATES PATENTf Fff`1 1f1filY' '.ronnonn, or KELVIN, ARIZONA.

nunisnasser RIFFLE.

To all wwm t may concern.'

Be it known that I, Jon HORN have invented new and useful Improvements in Rubber-Set Rimes, of which the follow-Y ing is a specification. Y

My invention relates to ore concentrating i tables and my object is to make rubber set rilies, and my invention consists ofthe novelV features herein shown, described and claimed.A

' Figure l isa perspective of a riffle board for .an ore concentrating table and provided with rubber riles in accordance with the principles of my invention.

Fig. 2 is a cross section on the liney 2' -2 ofFigl.VY f Y' .y

Fig. 3 is an enlarged fragmentary cross sectional detail von .a plane parallel with Fig. 2.

Fig, 4 is a fragmentary perspective detail. In applying vmy rubber set riftles to a r1tie board 1 I place a layer of tar paper 2 upon Then I start from the side wall 6 which eX.

tends upwardly from one side of the board l and lay down two Vof the strips 3 with the strips 4 and drive nails 7 suitable distances apart tov hold the strips in place and make Y y a double width space 8.A Then I.A apply a coating of adhesive material, such as vrubber cement, to the exposed edges ofthe strips 3 and 4 which have -just been secured in :place and place the riiiie plate 5 against the adhesive material, and apply adhesive material i to the` third strips 3 and 4 and place the strips against the riile plate 5 and apply the nails and so on until'the desired numv5 and so that when the adhesive material sets ber of riiles have been applied to the board. The nails 7 are driven so as to press the strips 3 and 4 firmly against the riiileplates and dries water tight joints are formed to prevent the water from soaking through the facing of the boardzaround the riiiie plates.

lBy using the `wooden s trips', I am able toV use thinner linoleum strips 4.

The layer of tar paper 2 andtheicoat-V ings of adhesivelmaterial against the edges of the strips 3 completely surround the strips Y with water proof,V material so that theywill v not soak water and expand.

specification oflLetters Patent.

name to this specication.

plied, and yPI'Qdl'lce a good concentrating table;r -Y n Iclaim:

Patented Aug. 31,` k1920.v 1 Application mea June'a4, 1919. seria; img soafiss.v 1

Y f The rubber set:riieslthusconstructed`r are Vcheaply and easily 'made' and quickly ap-l The board l forms the deck ofthe concentrating table. y v .Y 5 Y v.Various changes may bemadewithout de -ry parting from the spirit of my invention as: claimed. Y' V65k '1. In a concentrating," table or-the. like,` ..I I Y a wooden deck, a layer.of.t'arpaperv upon i the deck,` wooden'strips upon?A the layer of. l

tar: paper, linoleum strips `upon the lwooden strips,and sheet metal yriffleplates upon the tar papebetwen the wodenfscrips amaba,

tween the linoleum,strips,` and.water proofing cement coating kfor thel bottom andtside i Y l 2. Ina concentrating "table'or "the like, a l

edges ofthe wooden and'linoleum strips.

woodendeck, -a layer of tar paper upon the deck, wooden'V strips uponthe vlayer .of tarl paper, .linoleum strips, upon the '-n'rooden` strips, sheet metal ritlle plates upon the tar paperbetween lthe woodenmjstrips and-between the linoleu'm strips, awaterprooiing cement coating for the bottom and'sidesfof A the wooden and linoleum strips rand` means ff .85

for. holdingthe strips to thedeckrand the metallic riilies betweenfthe strips'.` 1

3. Ina concentratingvtable or thelike,k`a `l i wooden deck, a layerof tar paperuponvv the deck,wooden strip'sjuponthe layer of *tary paper, linoleum strips upon Vthe woodenvk strips, sheet metal riffle plates upon the tar paper Vvbetween the wooden strips andV between the linoleum strips,and water 'proof cement on the side fedgesofsaid wooden strips and said linoleum strips lsecuring'"said,

metal riffles thereto. Y

4. `In a concentr'atingtable, awooden deck, T

a llayer of targpaper vupon-the deck", wooden strips upon the layer of tar paper, linoleum strips 'upon the wooden strips, sheet metal rifle. plates upon the tar paperbetween'the wooden strips and between lgtheglinoleum into said wooden decktojhold thef'gparts firmly together.

strips, and nails driven through said linoleum strips, wooden Astrips and "tar paper-z 

